KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > commons > collections > iterators > UniqueFilterIterator


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.apache.commons.collections.iterators;
17
18 import java.util.Iterator JavaDoc;
19
20 import org.apache.commons.collections.functors.UniquePredicate;
21
22 /**
23  * A FilterIterator which only returns "unique" Objects. Internally,
24  * the Iterator maintains a Set of objects it has already encountered,
25  * and duplicate Objects are skipped.
26  *
27  * @since Commons Collections 2.1
28  * @version $Revision: 1.9 $ $Date: 2004/05/07 23:29:02 $
29  *
30  * @author Morgan Delagrange
31  */

32 public class UniqueFilterIterator extends FilterIterator {
33        
34     //-------------------------------------------------------------------------
35

36     /**
37      * Constructs a new <code>UniqueFilterIterator</code>.
38      *
39      * @param iterator the iterator to use
40      */

41     public UniqueFilterIterator( Iterator JavaDoc iterator ) {
42         super(iterator, UniquePredicate.getInstance());
43     }
44
45 }
46
Popular Tags